Home / 527,926,938.60-791,890,407.90-472,387,636.20

Finding the Fourth Proportional to 527,926,938.60, 791,890,407.90 and 472,387,636.20

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Solution

The fourth proportional to 527,926,938.60, 791,890,407.90 and 472,387,636.20 is: 708,581,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,926,938.60 : 791,890,407.90 = 472,387,636.20 : x
  2. Step 2: Convert to fraction form
    527,926,938.60/791,890,407.90 = 472,387,636.20/x
  3. Step 3: Cross multiply
    527,926,938.60x = 791,890,407.90 × 472,387,636.20
  4. Step 4: Simplify right side
    527,926,938.60x = 374,079,237,917,334,784
  5. Step 5: Solve for x
    x = 374,079,237,917,334,784/527,926,938.60
  6. Step 6: Final answer
    x = 708,581,454.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.